Precise Measurement of the b-Quark Fragmentation Function in Z0 Boson Decays
Author(s)Taylor, Frank E.; Dong, D. N.; Verdier, Robin; Cowan, Ray Franklin; Lia, V.; Osborne, Louis S.; Yamamoto, R. K.; ... Show more Show less
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We have developed a new technique for inclusive reconstruction of the energy of B hadrons. The excellent efficiency and resolution of this technique allow us to make the most precise determination of the b-quark fragmentation function, using e[superscript +]e[superscript -]→Z[superscript 0] decays recorded in the SLAC Large Detector experiment. We compared our measurement with the predictions of a number of fragmentation models. We excluded several of these models and measured the average scaled energy of weakly decaying B hadrons to be 〈x[subscript B]〉 = 0.714±0.005(stat)±0.007(syst)±0.002 (model dependence).
DepartmentMassachusetts Institute of Technology. Department of Physics; Massachusetts Institute of Technology. Laboratory for Nuclear Science
Physical Review Letters
American Physical Society
Abe, Kenji et al. “Precise Measurement of the b-Quark Fragmentation Function in Z Boson Decays.” Physical Review Letters 84.19 (2000): 4300. (C) 2010 The American Physical Society.
Final published version